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0
votes
1answer
65 views

What problems can I have by pinging or making a HTTP request to a website every minute?

What problems do I have to think before creating a monitoring system like pingdom, etc?
2
votes
3answers
259 views

Is reading the HTTP GET response enough to know if the server is up?

I want to make sure the site is UP and running. Is reading the HTTP GET Response enough? What does services like PingDom test?
1
vote
1answer
2k views

May I use CDN for whole website (PHP, Apache, MySQL) or just for images and CSS, JS files?

May I use CDN for whole website (PHP, Apache, MySQL) or just for images and CSS, JS files? What's the best choice > cloud-hosting or dedicated-hosting? Does CDN has that support? Witch hosting you ...
2
votes
3answers
1k views

Is there a Ruby, Python or open source way to monitor uptime?

Is there a Ruby, Python or open source uptime monitor like PingDom, etc?
2
votes
3answers
277 views

“uptime” and “who” disagreeing

I've got an Ubuntu server that's exhibiting a somewhat strange behavior. uptime reports the following: 07:48:10 up 627 days, 21:19, 3 users, load average: 0.04, 0.01, 0.00 w reports: 21:59:25 up ...
0
votes
2answers
155 views

Verifying hosted VOIP PBX uptime

For the second time, I'm outsourcing my VOIP hosting to a provider, whom I have to trust their sales pitch of 45 minutes down per 365 days. Is there an automated way I can test their server(s) ...
0
votes
2answers
247 views

service uptime guarantee calculation

I have a web system. I need to calculate the up time of the whole system. I have load balance (in the moment without virtual ip and redundant load balance), one database. Two servers as cluster. ...
3
votes
3answers
10k views

Method to calculate downtime percentage

I need a calculation to work out the downtime percentage of a server. I am making a script that runs via cron every minute to check the uptime of a remote server. The two values I have to play with ...
2
votes
4answers
3k views

nginx: how to load a new conf file witout restarting nginx

I made a new conf file in sites-available (and linked it in sites-enabled) and now I want to "install" that conf file without resetting the nginx server. As root, I can run nginx -c file.conf since ...
7
votes
6answers
10k views

Simple web server monitoring (alive)

Any tip about software to monitor if a web server is up and running on linux ? It should be able to run with not knowing anything more than the URL. And it must have functionality to send an email ...
0
votes
5answers
246 views

suggest web server monitoring service [closed]

Please, suggest web server(web site, web hosting) monitoring service. It should : - be online - monitor from different locations - monitor uptime, response time etc. - have alerts
4
votes
3answers
380 views

Reasonably-priced, multiple endpoint heartbeat software

We've got four servers in use for a mission-critical application that all need constant connectivity to each other--six always-up connections in total. I need a way to monitor these connections and ...
1
vote
2answers
1k views

Keeps “SSH timeout” error in our AWS instance- how do i diagnose?

I am befuddled by this error. We keep failing to SSH into our AWS instance, whether it is is deployment or via console. I have tried rebooting a few times, but it does not seem to be helping. Here ...
0
votes
1answer
44 views

How to add a string to every file opened in Apache

I have a lot of domains and it's getting hard to manage so I want to add a string to the end of every file opened in Apache so I can request any domain if check if the string is there so I will know ...
2
votes
3answers
617 views

Is it possible to guarantee 100% uptime in redundant hosting servers inside a cloud computing structure?

I'm interested in find a hosting that can offer really 100% of uptime. Is it possible in hosting servers inside a cloud computing structure?
3
votes
6answers
3k views

How to transfer a domain name with 99.9999% uptime?

I am currently developing a project which is mission-critical. The actual domain name is registered with 1 & 1 and I plan on purchasing DynDNS Custom DNS service (which has 5 different ...
0
votes
3answers
834 views

Help, my CentOS servers keep going down , No route to host after a random uptime

I have a couple of Centos linux servers, that have a very simple task, they run nginx + fastcgi for php , and some NFS mounts between them, readonly They have some RPC commands to start some ...
0
votes
2answers
194 views

How To Perform Distributed Website Monitoring?

I would like to know how sites like the following perform distributed website monitoring (from multiple checkpoints/countries). pingdom.com, site24x7.com, uptrends.com, siteuptime.com, etc, etc. To ...
2
votes
1answer
1k views

php APC uptime problem

I am on LAMP with Alternative PHP Cache. It worked fine until yesterday when I updated the website and changed a few mySQL queries (I don't see the how it would affect APC opcode cache) Today I see ...
0
votes
4answers
321 views

System Uptime Monitors

I am looking for reviews and suggestions a an online service such as http://www.alertmefirst.com/ I need a service or system that can monitor the following and provide me daily emails and monthly ...
1
vote
2answers
2k views

Lifetime of IIS worker process or AppDomain

I have an ASP.NET app hosted in IIS, and I have automatic worker process recycling/shutdown disabled. I'd like to have a rough idea of how long the app has been running continuously without being re-...
3
votes
1answer
349 views

How to monitor Flash applets?

We created a fancy Flash application for a customer and deployed it. The server itself is monitored by the hosting company, but is there any external monitoring service that works well with Flash ...
1
vote
3answers
418 views

Self uptime monitor?

Is there an app or a technique i can use to self monitor a server? For a technique i was thinking of writing a log file every minute and clearing them every hour marking down every minute my app did ...
2
votes
4answers
2k views

Storing / calculating historical load averages

When I run uptime, I get output similar to the following: 07:50:39 up 13 days, 5:00, 1 user, load average: 0.00, 0.02, 0.00 Is there a way, other than by running uptime every X-many minutes, to ...
0
votes
3answers
529 views

Converting a non-raid linux box to Raid, with minimal downtime

I want to convert a non-raid linux system to RAID1, using two new disks. I would like to do this with minimal downtime. Rather than adding the disks and shutting down to single user mode to copy ...
0
votes
8answers
917 views

Server Uptime before a reboot

I was just visiting a server at the datacenter and notied that it has been up(without a reboot) since last October (11 months). It is a VMHost running Windows Server 2003. Even if something has ...
0
votes
3answers
1k views

Apache uptime question

I've been doing web development for some time, but server admin has never been part of my job. I'm finding that more and more I need to learn about what is going on under the hood. Looking at server ...
1
vote
6answers
747 views

Windows Server 2003 Availability / Uptime

I'm looking at putting together a support SLA. As a base line I'd like to know roughly what sort of percentage availability I should expect from a non-clustered Windows 2003 Server. Assumptions are ...
4
votes
1answer
760 views

General SLA Expectations and Maintenance for Standard Services

What would generally be your expectation for SLA uptimes across the following services in a given month for a 'normal' scenario? I'm including my expectations... the purpose of this question is to ...